Find the roots of the following quadratic (if they exist) by the method of completing the square.
We have to make the quadratic equation a perfect square if possible or sum of perfect square with a constant.
(a + b)2 = a2 + 2ab + b2
⇒ (x – 7/4)2 = 25/16
⇒ x – 7/4 = �5/4
⇒ x = 3, 1/2
2